How Much Does It Cost to Import Shisha Charcoal from Indonesia to the United Kingdom in 2026? Documents, Procedure, and Full Landed-Cost Breakdown

Importing one 20-foot container (20 metric tons) of coconut shell shisha charcoal from Indonesia to the UK costs approximately £1,478 per metric ton before VAT — or £29,563 total landed cost per container — when accounting for the FOB price, ocean freight, dangerous goods surcharges, terminal handling, and every port levy applied at Felixstowe in 2026. The import procedure is governed simultaneously by HMRC customs regulations, the IMDG Code for dangerous goods (UN 1361, Class 4.2), and the Developing Countries Trading Scheme (DCTS), which currently grants Indonesian coconut shell charcoal briquettes a 0% customs duty rate that expires on January 1, 2027.

Parameter	Value
UK HS Code	4402.20.00.00 (Shell or nut charcoal, agglomerated)
Customs Duty (DCTS)	0% through December 31, 2026
Import VAT	20% (standard commercial rate)
DG Classification	UN 1361, Class 4.2, Packing Group III
Minimum Order (1 × 20ft FCL)	18–20 metric tons
FOB Price Range	USD 1,100–1,500 per ton
Ocean Freight (Semarang → Felixstowe)	USD 5,500–7,850 per 20ft container
Transit Time	28–35 days
Total Landed Cost (excl. VAT)	~£1,478 per ton / £1.48 per kg
Total Landed Cost (incl. VAT, before PVA)	~£1,774 per ton
Required Documents	12 (7 from exporter, 3 from importer, 2 from carrier/broker)
DCTS Indonesia Graduation	January 1, 2027

Why Does Shisha Charcoal Require a Specialized Import Procedure?

Shisha charcoal requires its own import playbook because it is simultaneously classified as a low-value bulk commodity (approximately USD 1.50/kg) and a Class 4.2 dangerous good liable to spontaneous combustion — a regulatory contradiction that generic import guides cannot address. A single missing certificate can strand twenty tons of charcoal at port, accruing demurrage at over £100 per day.

The product qualifies for zero customs duty under DCTS yet attracts a 20% VAT bill that blindsides first-time importers who mistakenly assume the 5% reduced solid-fuel rate applies. It is exempt from phytosanitary certificates yet routinely flagged by Border Force X-ray algorithms designed to detect contraband in dense, opaque agricultural cargo. The IMDG Code treats it as a substance liable to spontaneous combustion, while the commercial market prices it at roughly a dollar a kilogram.

The practical consequence is that documentary precision matters more for this commodity than for most goods entering the UK. A vanning survey report, a weathering declaration, a self-heating test — each addresses a specific link in the compliance chain. If any link breaks before the vessel departs Indonesia, the importer faces demurrage charges, customs holds, and broker fees that can exceed £1,000 per incident. The purpose of this guide is to map every link in that chain so that none of them break.

How Have UK Charcoal Import Regulations Changed Since Brexit?

The current regulatory framework for UK charcoal imports — CDS declarations, mandatory UN Test N.4 certificates, carrier-approved vanning surveys, and DCTS origin declarations — is the direct product of three post-2019 disruptions: Brexit, a global crackdown on container fires, and the replacement of the EU’s GSP with the UK’s own trade preference scheme.

Prior to 2021, Indonesian coconut charcoal entered the UK under the EU’s Generalised Scheme of Preferences, processed through the CHIEF system — a platform built in the 1990s that processed declarations in a format closer to a telegram than a modern database. HS code classification was loosely enforced. Charcoal routinely entered under the residual code 4402.90.00 (“other wood charcoal”) without consequence because the duty rate was identical regardless of subheading. Dangerous goods documentation was theoretically required under the IMDG Code, but enforcement at European ports was inconsistent.

Brexit (January 1, 2021) severed the UK from the EU customs union, forcing the creation of an entirely new tariff schedule (the UK Global Tariff) and the replacement of CHIEF with the Customs Declaration Service (CDS) — a system that demands granular data at a level CHIEF never required, including 10-digit commodity codes, preference claim codes, and document status codes in structured data elements.

Container fire incidents — catastrophic fires aboard vessels like the Yantian Express (2019) and X-Press Pearl (2021), linked in part to improperly declared or packaged charcoal — triggered a global regulatory crackdown. The International Maritime Organization responded with IMDG Code Amendment 42-24, making the Class 4.2 declaration for all charcoal mandatory rather than advisory, effective January 1, 2026.

The DCTS replaced the EU GSP in June 2023, creating a bespoke preferential tariff framework with its own origin rules and graduation timelines. The old GSP Form A is no longer accepted for UK imports.

What Happened When Exporters Tried to Reclassify Charcoal as Activated Carbon?

Between 2019 and 2022, several Indonesian exporters classified coconut charcoal briquettes as “activated carbon” (HS 3802) to bypass the Class 4.2 dangerous goods classification entirely, since activated carbon is not classified as dangerous goods. The strategy failed: customs authorities in Hamburg, Rotterdam, and Felixstowe rejected these declarations after laboratory tests confirmed the material had not undergone the steam or chemical activation process required for 3802 classification. Consequences included seizure, fines, and in at least two documented cases, permanent exclusion from carrier booking platforms. The takeaway is unambiguous: the only legally defensible classification for coconut shell charcoal briquettes is HS 4402.20.00.00 with UN 1361, Class 4.2 dangerous goods declaration.

What Is Shisha Charcoal and How Is It Classified for UK Import?

Shisha charcoal, hookah coals, and coconut charcoal briquettes are commercial names for a single product: agglomerated briquettes manufactured from 100% carbonized coconut shell, bound with a natural starch binder (typically tapioca or cassava), classified under UK HS code 4402.20.00.00 and IMDG dangerous goods code UN 1361, Class 4.2, Packing Group III.

What Is the Product Composition of Coconut Shell Charcoal Briquettes?

Coconut shell charcoal briquettes are manufactured from raw coconut shells — an agricultural byproduct of Indonesia’s copra and coconut oil industry — carbonized in kilns at 500°C–800°C, crushed to powder, mixed with 3–5% natural starch binder, and hydraulically pressed into cubes (25×25×25mm or 26×26×26mm for standard shisha formats), flats, fingers, or hexagonal briquettes. The finished product is odorless, produces minimal smoke, and has a calorific value of approximately 7,000–7,500 kcal/kg with an ash content below 2.5% for premium grades.

Establishing the synonymic chain — shisha charcoal = hookah coals = coconut shell charcoal briquettes = coconut hookah charcoal — matters because customs brokers, shipping lines, and HMRC each use different terminology for the identical product. The commercial invoice must use the technical description (“coconut shell charcoal briquettes, agglomerated, fully carbonized”) regardless of what the sales contract calls them. Retail packaging may use “shisha coals,” “hookah charcoal,” or “natural coconut coals,” but none of these terms should appear on customs documentation.

What Is the Correct UK HS Code for Shisha Charcoal?

The correct UK commodity code is 4402.20.00.00 — “Wood charcoal (including shell or nut charcoal), whether or not agglomerated: Of shell or nut.” This is the only defensible classification under the WCO General Rules of Interpretation (specifically GRI Rule 3(a), which mandates that the most specific description prevails over a general one).

Using the residual category 4402.90 (“Other”) — as many Indonesian exporters still do on their Bills of Lading by default — is technically a misdeclaration. The duty rate under DCTS is 0% for both subheadings, so the financial impact of misclassification is not in the duty itself but in the customs risk score. When HMRC’s CDS risk engine encounters a container declared under 4402.90 arriving from Indonesia, it cannot distinguish the contents from hardwood charcoal potentially derived from illegally logged tropical timber. This triggers scrutiny under the UK Timber Regulations (UKTR) and potentially CITES verification — neither of which applies to coconut shell byproducts.

The result of declaring 4402.90 is a documentary hold, a demand for timber legality due diligence documentation that does not exist for this product, and an average of 3–5 days of port storage charges (£150–£750) while the misunderstanding is resolved. Declaring 4402.20.00.00 signals unambiguously that the product is agricultural shell-derived, not timber-derived. The algorithmic risk score drops. The container clears faster.

A US Customs and Border Protection ruling (N306942) confirms the international consensus: coconut shell charcoal, whether in lump or agglomerated briquette form, falls under the 4402.20 subheading specifically.

How Does Shisha Charcoal Differ from Other Charcoal Types for Import Purposes?

The distinction between charcoal types determines which regulatory obligations apply at the UK border. Traditional hardwood lump charcoal (oak, beech, birch) is classified under 4402.90 and faces heightened UKTR/CITES scrutiny for illegal timber sourcing. Quick-light charcoal — discs impregnated with chemical accelerants like sodium nitrate — may be reclassified into Chapter 36 (pyrotechnic articles) or Chapter 33 (specifically 3307.41 for products that operate by burning) if the chemical composition dominates the product’s function. Bamboo charcoal falls under 4402.90 as it is neither shell nor nut derived. Binchotan (Japanese white charcoal) is also 4402.90, manufactured from oak through a distinct high-temperature carbonization process. Coconut shell charcoal briquettes for shisha use contain no chemical accelerants or added fragrances, which is precisely why 4402.20 is correct and defensible.

Why Is Coconut Charcoal Classified as Dangerous Goods (UN 1361, Class 4.2)?

Coconut shell charcoal is classified as UN 1361, Class 4.2 (Substances liable to spontaneous combustion), Packing Group III under the IMDG Code because carbonized organic material undergoes slow exothermic oxidation when exposed to air, and in the confined, unventilated environment of a shipping container at sea — where ambient temperatures can exceed 60°C on deck — this oxidation can accelerate to thermal runaway and self-ignition above approximately 300°C.

This classification is not optional and cannot be circumvented through testing or certification. Even if a specific batch passes the UN Test N.4 self-heating test with excellent results, it remains Class 4.2. The test determines the Packing Group and validates the transport parameters; it does not reclassify the material. The CINS (Cargo Incident Notification System) guidelines for charcoal in containers and the Britannia P&I Club’s 2025 advisory document the fire risk and mandatory safety protocols in detail.

The practical consequences for UK importers are: higher ocean freight cost (DG surcharge of approximately USD 250 per container), a heavier documentary burden (MSDS, self-heating test, vanning certificate, weathering certificate), and shorter port free-time windows (3–5 days versus 7+ for standard cargo).

What Is the Full Cost Breakdown for Importing Shisha Charcoal from Indonesia to the UK?

The total landed cost for one 20-foot FCL container of premium shisha charcoal (20 metric tons, FOB Semarang, destination Felixstowe) is £29,563 excluding VAT — comprised of approximately fourteen distinct charges levied by six entities in two currencies. With Postponed VAT Accounting, this is the actual cash leaving the importer’s bank account.

What Is the FOB Price of Shisha Charcoal from Indonesia?

The FOB (Free on Board) factory price for commercial-grade coconut shell charcoal briquettes shaped for the shisha market ranges from USD 1,100 to USD 1,500 per metric ton, depending on ash content, calorific value, briquette geometry, and order volume. Premium low-ash product (under 2.5% ash content) with consistent burn time of 90–120 minutes per cube commands the higher end of this range, while standard-grade product with 3–4% ash and shorter burn times sits at the lower end.

For a standard 20-ton FCL: 20 tons × USD 1,500 = USD 30,000 → approximately £24,000 at a benchmark rate of 0.80 GBP/USD.

HMRC may scrutinize the declared FOB price. A declared value of USD 800/ton for premium shisha charcoal will trigger a customs valuation audit under the WTO Transaction Value method. The declared price must match the MT103 bank transfer record precisely — no discrepancies, no rounding. Maintaining absolute parity across all commercial documents (purchase order, proforma invoice, commercial invoice, and bank payment confirmation) is the only reliable defense against valuation challenges.

The minimum order quantity for an FCL shipment is 18–20 metric tons for a 20-foot container. Smaller quantities are economically unviable due to the fixed costs of ocean freight, DG booking, and vanning surveys, all of which are charged per container regardless of payload. For importers needing less than 18 tons, the only practical option is LCL (Less than Container Load) consolidation through a DG-certified freight forwarder — but LCL rates for Class 4.2 cargo are prohibitively high, typically 3–4 times the per-ton FCL rate, making orders below 10 tons commercially impractical.

How Much Does Ocean Freight Cost from Indonesia to the UK for DG Charcoal?

Ocean freight from Semarang or Surabaya to Felixstowe for a 20-foot dry container carrying Class 4.2 dangerous goods costs between USD 5,900 and USD 8,250 total, including the base freight rate (USD 5,500–7,850), a mandatory Dangerous Goods Premium of approximately USD 250, and marine cargo insurance of approximately USD 150.

The base freight depends on the carrier (MSC, Maersk, CMA CGM, and Hapag-Lloyd operate on this route), transit time (28–35 days via transshipment in Singapore or Port Klang), and seasonal rate fluctuations. Peak season (August–October) typically sees rates 15–25% higher than the January–April trough. The Dangerous Goods Premium (DGP) is a surcharge for UN 1361 Class 4.2 cargo because DG containers require specialized stowage: on-deck placement, separation from heat sources and incompatible cargo, and additional monitoring. Hapag-Lloyd’s published advisory confirms this surcharge structure.

Marine cargo insurance for a Class 4.2 shipment under Institute Cargo Clauses (A) costs approximately USD 150 (£120) for a CIF value of this magnitude. This insurance is not optional — it also covers General Average liability (explained in the risk section below).

Ocean freight total for this simulation: USD 5,500 (freight) + USD 250 (DGP) + USD 150 (insurance) = USD 5,900 → approximately £4,720.

Choosing a lower-cost carrier to save USD 500 on freight often means a longer transit time — 42 days instead of 28 — which ties up working capital and increases the risk of missing the 3–5 day free-time window at Felixstowe. For DG cargo, the faster routing is typically the cheaper option in total cost terms.

What Is the CIF Value and Why Does It Matter?

The CIF (Cost, Insurance, Freight) value is the customs value upon which UK duties and VAT are calculated — it is the sum of the product cost, ocean freight, and marine insurance. HMRC uses the CIF value as the starting point for all duty and tax assessments on imported goods.

Component	Amount (GBP)
FOB Product Value	£24,000.00
Ocean Freight	£4,400.00
Dangerous Goods Premium	£200.00
Marine Cargo Insurance	£120.00
CIF Value	£28,720.00

What Are the UK Port and Terminal Charges at Felixstowe in 2026?

UK port charges at Felixstowe for a standard 20-foot import container total £277.70 as of April 2026, comprising seven mandatory levies that fund terminal operations, security, and environmental compliance. These charges are confirmed by Maersk’s published Felixstowe port charges effective April 1, 2026.

Charge	Amount (GBP)	What It Funds
Terminal Handling Charge (THC)	£175.00	Physical lifting from vessel to terminal stack
Port Entry Fee	£21.10	Administrative processing per declaration
ISPS (Port Security)	£23.55	Cybersecurity, perimeter defense, CCTV
Port Infrastructure Charge	£14.51	Road maintenance, dredging, crane upgrades
Green Energy Transition Levy (GET)	£26.16	Electrification of terminal equipment
Energy Adjustment Levy (EAL)	£15.45	Fuel and electricity cost pass-through
Destin8 / Port Inventory System	£1.93	Software linking port, broker, and HMRC
Subtotal Port Charges	£277.70

The GET and EAL are relatively new additions — environmental and energy surcharges that fund Felixstowe’s transition to electrified terminal equipment. DP World Southampton applies comparable charges under slightly different names (Energy Transition Contribution at £29.50, per DP World’s 2026 tariff update). These are non-negotiable pass-through costs baked into every container crossing the quay wall.

How Much Does Customs Brokerage Cost?

A standard UK customs broker charges £50–£65 per entry for a single-commodity commercial declaration, covering the preparation and submission of the C88/E2 declaration through CDS, the application of the DCTS preference code, and the input of the 901Y phytosanitary exemption code. Additional commodity codes beyond the first three incur a line fee of approximately £3.50 per line.

If the importer does not use Postponed VAT Accounting, the broker may advance the VAT payment on the importer’s behalf, charging a deferment usage fee of 2–3% of the sum advanced. On a VAT bill of £5,912, that fee alone could exceed £170. Using PVA eliminates this cost entirely.

How Much Does Inland Haulage from Felixstowe Cost?

Trucking the container from Felixstowe to the importer’s warehouse costs £350–£600+ depending on distance. Delivery within East Anglia (Ipswich, Norwich, Cambridge) runs approximately £350. Delivery to Greater London averages £450. Delivery to the Midlands (Birmingham, Leicester) costs approximately £500. Delivery to Manchester, Leeds, or further north can exceed £600. The simulation uses £500 as a midpoint for a Midlands destination.

What Is the Total Landed Cost per Kilogram?

The complete landed-cost breakdown for 20 metric tons of premium shisha charcoal (FOB USD 1,500/ton, Semarang to Felixstowe) is as follows:

Cost Element	Amount (GBP)	Source/Basis
FOB Product Value (20 tons × USD 1,500)	£24,000.00	Factory price
Ocean Freight (Semarang → Felixstowe)	£4,400.00	Carrier rate
Dangerous Goods Premium	£200.00	Hapag-Lloyd advisory
Marine Cargo Insurance	£120.00	Broker estimate
CIF Value	£28,720.00
Terminal Handling Charge (THC)	£175.00	Felixstowe 2026 tariff
Port Entry Fee	£21.10	Felixstowe 2026 tariff
ISPS (Port Security)	£23.55	Felixstowe 2026 tariff
Port Infrastructure Charge	£14.51	Felixstowe 2026 tariff
Green Energy Transition Levy (GET)	£26.16	Felixstowe 2026 tariff
Energy Adjustment Levy (EAL)	£15.45	Felixstowe 2026 tariff
Destin8 / Port Inventory	£1.93	Maersk UK schedule
Inland Haulage	£500.00	Estimate (Midlands)
Customs Brokerage	£65.00	Market average
Customs Duty (DCTS 0%)	£0.00	UK Global Tariff / DCTS
Total Landed Cost (excl. VAT)	£29,562.70
Import VAT (20% of £29,562.70)	£5,912.54	HMRC standard rate
Grand Total Cash Outlay	£35,475.24
Cost per Metric Ton (excl. VAT)	£1,478.14
Cost per Kilogram (excl. VAT)	£1.48
Cost per Metric Ton (incl. VAT)	£1,773.76

With Postponed VAT Accounting, the actual cash leaving the importer’s bank account is closer to £29,563 — the VAT being a bookkeeping entry rather than a border payment.

What UK Import Duties and VAT Apply to Shisha Charcoal?

Indonesian coconut shell charcoal briquettes (HS 4402.20.00.00) currently attract 0% customs duty under the DCTS and 20% import VAT — though the duty preference expires on January 1, 2027, and the VAT rate is frequently miscalculated by first-time importers.

How Does the DCTS Grant 0% Duty on Indonesian Charcoal?

The Developing Countries Trading Scheme is the UK’s post-Brexit replacement for the EU’s Generalised Scheme of Preferences. It provides reduced or zero tariff rates for imports from eligible developing countries. Indonesia qualifies under the “Standard Preferences” tier, which sets the import duty rate at 0% for HS 4402.20.00.00. This is confirmed by the UK Government’s DCTS publication and the UK Integrated Online Tariff.

The 0% rate is conditional on two requirements. First, the Indonesian exporter must include a DCTS Origin Declaration — a specific legal statement — on the commercial invoice, certifying that the goods originate in Indonesia under the scheme’s rules of origin. Second, the goods must meet the DCTS origin criteria: for coconut charcoal briquettes, this means the product must be wholly obtained or sufficiently processed in Indonesia, which coconut shell charcoal inherently satisfies since the raw material (coconut shells) is an Indonesian agricultural byproduct and all manufacturing steps occur domestically.

Without the origin declaration, HMRC will apply the Most-Favoured-Nation (MFN) tariff rate. The old GSP Form A is no longer accepted. If the declaration is absent at the border, the broker must file at the MFN rate and the importer can attempt a retrospective preference claim — a slow and uncertain process that typically takes 3–6 months.

When Does Indonesia Graduate from DCTS and What Does It Mean for Importers?

Indonesia will graduate entirely from the DCTS on January 1, 2027, as officially published by the UK Government. After that date, the MFN rate under the UK Global Tariff applies to all Indonesian goods, including coconut charcoal.

Even a modest MFN duty rate of 2–4% on a CIF value of £28,720 adds £575–£1,149 per container in duty. Because duty is incorporated into the Value for VAT, the VAT bill increases as well: an additional £115–£230 in VAT on top of the duty itself. The total additional cost per container could reach £1,379.

The date of vessel arrival in UK territorial waters determines the applicable tariff, not the date of shipment. Importers planning Q4 2026 shipments must ensure the vessel arrives before midnight on December 31, 2026. Whether a bilateral UK-Indonesia free trade agreement will restore preferential access after graduation is unknown at the time of writing.

Why Does the 20% VAT Rate Apply Instead of the 5% Reduced Rate?

UK import VAT on commercially imported shisha charcoal is 20% — not 5%. The reduced 5% rate for “solid fuels” under HMRC VAT Notice 701/19 applies only to supplies for domestic (household) use in quantities below one metric ton. A 20-ton commercial container exceeds this threshold by a factor of twenty.

The VAT is calculated on the Value for VAT (VFV), which includes the CIF value, any duty paid, and all incidental charges incurred up to the point of delivery: VFV = £28,720 (CIF) + £0 (duty) + £777.70 (port/logistics charges) + £65 (brokerage) = £29,562.70. Import VAT = £29,562.70 × 20% = £5,912.54.

Mini-Case: The £4,434 VAT Miscalculation

Problem: A first-time UK importer of shisha charcoal built their entire retail margin calculation on the assumption of 5% import VAT, based on a general reading of the reduced solid-fuel rate.

Action: The customs broker submitted the CDS declaration with the standard 20% VAT rate — the only legally correct rate for a 20-ton commercial shipment — and the system returned a VAT assessment of £5,912.54.

Result: The importer faced a VAT bill £4,434 higher than budgeted (the difference between 5% and 20% on the Value for VAT of £29,562.70). Because they were not registered for Postponed VAT Accounting, the full £5,912.54 was payable in cash before the container was released. The margin on the entire shipment was eliminated.

How Does Postponed VAT Accounting Work for Charcoal Imports?

Postponed VAT Accounting (PVA) allows VAT-registered importers to declare and simultaneously reclaim import VAT on their periodic VAT return — a paper transaction with zero cash flow impact. Instead of paying £5,912.54 at the border, the importer accounts for the VAT in Box 1 (output tax) and Box 4 (input tax) of their VAT return, resulting in a net-zero cash payment.

To use PVA, the importer must hold a valid UK VAT registration linked to their EORI number. The customs broker selects PVA as the method of payment during the CDS declaration. HMRC issues a monthly postponed import VAT statement via the Customs Declaration Service, which the importer uses to reconcile their VAT return.

The main trade-off is administrative complexity: errors in declaring postponed VAT can trigger HMRC compliance inquiries. But for a shipment of this size, PVA saves £5,912.54 in immediate cash outlay — and eliminates the broker’s deferment usage fee (2–3% of the VAT advanced, or approximately £170). There is no rational argument against using PVA for a VAT-registered business.

What Documents Are Required to Import Shisha Charcoal to the UK?

Importing shisha charcoal requires 12 documents — 7 from the Indonesian exporter, 3 from the UK importer, and 2 from the carrier or broker. Every document must be complete before the vessel departs Indonesia, because for DG cargo at a UK port, a missing certificate triggers demurrage (£100+/day), customs holds, and potential relocation to a hazardous goods holding area at additional cost.

What Documents Must the Indonesian Exporter Provide?

1. Commercial Invoice — Must state buyer/seller details, product description (“100% Coconut Shell Charcoal Briquettes, Agglomerated, Fully Carbonized”), FOB/CIF value in USD, quantity, and HS code 4402.20.00.00. The DCTS Origin Declaration text must be printed directly on this document. Errors cause total blockage of customs clearance and risk customs valuation audits if pricing appears inconsistent with payment records.

2. DCTS Origin Declaration — A prescribed legal statement stamped or printed on the commercial invoice by the Indonesian exporter, certifying Indonesian origin under DCTS rules. This replaced the old GSP Form A. Without it, the 0% duty claim is rejected at the border.

3. Packing List — Detailed breakdown of carton count, inner packaging (e.g., 1 kg retail boxes inside 10 kg or 20 kg master cartons), net weight, gross weight, and total cubic measurement. The gross weight must align with the Verified Gross Mass (VGM) submitted to the carrier. A discrepancy exceeding 5% triggers a container re-weighing and potential IMDG compliance investigation.

4. Material Safety Data Sheet (MSDS) — Sixteen-section international format compliant with GHS (Globally Harmonized System). Section 14 (Transport Information) must explicitly state: UN 1361, Class 4.2, Packing Group III. Required before the shipping line will accept a booking. Misdeclaring the cargo as non-hazardous to bypass this requirement is illegal and voids marine insurance. A sample MSDS for coconut shell charcoal briquettes illustrates the required format.

5. Self-Heating Test Certificate (UN Test N.4) — Issued by an ISO-certified Indonesian laboratory (Carsurin and Beckjorindo are the two most commonly accepted by major carriers). Proves the specific production batch was tested in a 140°C oven for 24 hours and demonstrated stable thermal behavior. Without this certificate, the carrier’s dangerous goods desk will reject the booking outright. The certificate is batch-specific — a test from a previous production run does not cover a new shipment.

6. Vanning Certificate / Surveyor Report — Issued by an independent marine surveyor approved by the carrier. Signed attestation with timestamped photographs at the 1/3, 2/3, and full stages of container loading, confirming IMDG-compliant packing: 30 cm headspace maintained, thermal (vacuum) blanket installed, no overload beyond the container’s maximum payload. The CINS charcoal guidelines and Maersk’s charcoal advisory for Indonesia specify these requirements in detail.

7. Weathering / Cooling Certificate — Confirms compliance with IMDG Special Provisions 925 and 978: the charcoal was subjected to open-air weathering for a minimum of 14 days after production, and the material temperature did not exceed 40°C on packing day. This is the single most important fire-prevention measure in the supply chain.

What Documents Must the UK Importer Provide?

8. EORI Number Registration — A GB-prefixed Economic Operators Registration and Identification number, obtained free of charge from HMRC via GOV.UK. Without it, no CDS declaration can be filed. Registration takes 5–10 business days. Apply well before the vessel is on the water.

9. Letter of Authority / Direct Representation — Written authorization for the customs broker to act on the importer’s behalf. Legally required — brokers are prohibited from submitting declarations without it. Most brokers provide a standard template. The letter should specify whether the broker acts under “direct representation” (the importer is the declarant and bears legal responsibility) or “indirect representation” (the broker shares liability) — most commercial importers use direct representation.

10. VAT Registration Certificate — Required if using Postponed VAT Accounting. Unregistered importers must pay the full 20% VAT at the border in cash (£5,912.54 for this shipment) before the container is released.

What Documents Does the Carrier or Broker Generate?

11. Bill of Lading (B/L) — The title document for the goods. Must accurately reflect shipper, consignee, notify party, piece count, gross weight, and the UN 1361 Class 4.2 designation. If an original paper B/L is issued, it must physically arrive at the UK port before the container is released. A Telex Release or Sea Waybill eliminates this physical transfer risk — and is the only sensible option for a 28-day transit where international courier delays could hold up container release.

12. C88/E2 Customs Entry Output — Generated by the customs broker upon successful CDS declaration. This is the importer’s proof of legal import and the basis for VAT recovery. Retain for a minimum of four years. Failure to retain this document severely complicates VAT recovery and exposes the business to HMRC compliance audits.

What Is the Step-by-Step Procedure to Import Shisha Charcoal to the UK?

The import procedure from Indonesian factory to UK warehouse involves 10 sequential steps spanning approximately 7–8 weeks from production completion to warehouse delivery, including 14 days of mandatory weathering, 3–5 days for DG booking approval, 28–35 days of ocean transit, and 1–3 days for UK customs clearance.

Step 1 — Register for an EORI number with HMRC. Apply through the GOV.UK EORI registration service before any goods ship. Processing takes up to 10 working days. If the business is also VAT-registered, confirm that the EORI is linked to the same VAT number to enable Postponed VAT Accounting.

Step 2 — Select and verify the Indonesian supplier. Confirm the factory can produce all seven exporter documents. Request sample certificates — particularly the UN Test N.4, MSDS, and a previous vanning certificate — before committing to a purchase order. If the factory cannot produce a valid self-heating test certificate or does not have a relationship with a carrier-approved marine surveyor, find a different factory. A factory visit or third-party audit (SGS, Carsurin, Bureau Veritas) costs a fraction of what a failed shipment costs. Key quality parameters to verify: ash content (under 2.5% for premium), calorific value (7,000+ kcal/kg), moisture content (under 5%), and burn time (90+ minutes for standard 25mm cubes).

Step 3 — Agree commercial terms and Incoterms. Settle on an Incoterm (FOB or CIF), price per ton, payment terms (typically 30% deposit, 70% against copy of B/L), and the production timeline. FOB gives the importer more control over carrier selection and DG compliance — the importer chooses the shipping line, the freight forwarder, and can verify that the DG booking is submitted correctly. CIF is simpler but transfers control of a critical compliance step to the supplier. For first-time importers, FOB with a trusted UK-based freight forwarder experienced in Class 4.2 cargo is the lower-risk option.

Step 4 — Factory produces, weathers, and packs the charcoal. Production includes carbonization, crushing, briquetting, and drying. After production, the briquettes must weather in open air for a minimum of 14 days to allow residual volatile organic compounds to off-gas and internal temperature to stabilize. On packing day, the independent surveyor attends the vanning, installs the thermal blanket, verifies the 30 cm headspace, and photographs everything. The vanning certificate and weathering certificate are generated at this stage.

Step 5 — Book DG ocean freight. The factory or its freight forwarder submits a dangerous goods booking request to the shipping line, attaching the MSDS, UN Test N.4 certificate, vanning certificate, and weathering declaration. The carrier’s DG desk reviews and approves (or rejects) the booking within 3–5 business days. Carrier options on the Semarang–Felixstowe route include MSC, Maersk, CMA CGM, and Hapag-Lloyd, typically with transshipment in Singapore or Port Klang.

Step 6 — Appoint a UK customs broker. Provide them with the Letter of Authority, EORI number, copies of all documents from the factory, and the expected vessel arrival date. A competent broker will pre-lodge the CDS declaration so that customs clearance begins the moment the vessel berths. Explicitly confirm the broker understands three critical requirements: the HS code is 4402.20.00.00, the DCTS preference must be claimed, and the 901Y phytosanitary exemption code must be entered in Data Element 2/3.

Step 7 — Track the vessel and prepare for arrival. Use the carrier’s online tracking platform to monitor vessel position and ETA. Confirm the haulier booking for container collection. Confirm the broker has all documents and is ready to submit the declaration. For DG cargo at Felixstowe, the free-time window may be as short as 3 days — every day of delay has a direct cost.

Step 8 — Customs clearance via CDS. The broker submits the C88 declaration electronically. Key data elements: HS code 4402.20.00.00, DCTS preference code (claiming 0% duty), document code 901Y in Data Element 2/3 (phytosanitary exemption for highly processed wood products), and PVA election for VAT. The CDS risk engine assigns a clearance route: Route 6 (green) is immediate unconditional release; Route 1 (orange) requires electronic submission of supporting documents to HMRC’s National Clearance Hub; Route 2 (red) means physical examination — the container is X-rayed or opened, and the importer bears the cost.

Step 9 — Container release and inland delivery. Upon clearance, the carrier issues a Delivery Order. The haulier collects the container from the terminal and delivers it to the importer’s warehouse within the booked delivery slot.

Step 10 — Post-clearance record keeping and VAT recovery. Retain the C88/E2, all commercial documents, and the PVA monthly statement for a minimum of four years. Declare the postponed VAT on the next periodic VAT return (Box 1 and Box 4). HMRC audits retrospectively. Having a clean, complete file is not optional — it is insurance against compliance inquiries that can arrive years after the shipment.

What Are the IMDG Dangerous Goods Requirements for Shipping Charcoal?

All coconut shell charcoal shipments — including finished briquettes — must comply with IMDG Code requirements for UN 1361, Class 4.2, Packing Group III, which mandate four interlocking safety documents, DG-specific carrier booking, and specialized container stowage. Non-compliance is not merely an administrative failure — it is a documented fire risk that has caused catastrophic vessel losses.

Why Does Charcoal Self-Ignite in Shipping Containers?

Carbonized coconut shell retains a porous structure with an enormous surface area-to-mass ratio. When exposed to oxygen — even the limited amount trapped in a sealed container — the carbon surface undergoes slow exothermic oxidation. In the confined, insulated environment of a shipping container on deck in equatorial waters, where ambient temperatures can exceed 60°C, this heat cannot dissipate. Above approximately 100°C, the oxidation rate accelerates exponentially. Above 300°C, ignition occurs. The Britannia P&I Club documented multiple container fires on major trade routes attributed to improperly weathered or packed charcoal.

What Safety Documents Are Required Under the IMDG Code?

Four documents form an interlocking safety chain, each addressing a different point in the risk sequence. The MSDS defines the hazard in standardized sixteen-section GHS format. The Self-Heating Test Certificate (UN Test N.4) validates that the specific batch has been tested at 140°C for 24 hours and its thermal properties are within safe parameters. The Weathering Certificate confirms the material was cooled and off-gassed for at least 14 days post-production, with temperature below 40°C on packing day. The Vanning Certificate confirms the container was packed with a thermal blanket installed, 30 cm headspace maintained, and no overload beyond the container’s maximum payload.

Remove any one document and the chain breaks. The carrier will either refuse the booking or, if the gap is discovered at the port of loading, refuse to load the container — stranding the shipment at the Indonesian port with storage charges accruing until the documentary gap is resolved.

How Does the DG Booking Process Work with Shipping Lines?

Major carriers — including MSC, Maersk, CMA CGM, and Hapag-Lloyd — maintain dedicated DG desks that review every UN 1361 booking individually. MSC’s charcoal advisory and Maersk’s customer advisory for charcoal cargo detail requirements including carrier-approved surveyors for the vanning, specific thermal blanket specifications, and photo documentation standards. The approval process takes 3–5 business days per booking.

The DG booking protocol requires on-deck stowage (away from engine room heat sources), separation from incompatible cargo classes, and additional monitoring during the voyage. These requirements are why the Dangerous Goods Premium exists — it is not a discretionary surcharge but the cost of compliant stowage and handling.

What Is General Average and Why Should Charcoal Importers Know About It?

If a fire breaks out aboard the vessel — whether caused by your container or anyone else’s — the carrier may declare General Average under the York-Antwerp Rules, a maritime law principle requiring all cargo interests aboard to contribute proportionally to the cost of saving the ship and remaining cargo.

On a large container vessel carrying USD 500 million in cargo, a General Average event can result in contribution demands of 10–30% of each shipment’s declared CIF value. For a charcoal container worth £28,720 CIF, that is a potential liability of £2,872 to £8,616 — payable before the cargo is released, regardless of whether your container was damaged or involved.

Marine cargo insurance with General Average coverage eliminates this exposure. The cost (approximately £120 for this shipment) is negligible compared to the uninsured liability. Without insurance, the importer is personally liable for the General Average contribution, and the carrier will hold the cargo as security until the bond is posted. Do not ship DG cargo without marine insurance.

What Hidden Costs and Risks Can Increase the Price of Importing Charcoal?

Beyond the predictable line items in the landed-cost calculation, four categories of unplanned costs materialize with regularity on the Indonesia-to-UK charcoal trade lane: demurrage on DG cargo, Border Force examination fees, Bill of Lading correction penalties, and phytosanitary misclassification delays. Together, these can add £500–£2,000+ per container if documentary or procedural gaps are not closed before the vessel departs Indonesia.

How Does Demurrage Work for Dangerous Goods Containers?

Standard free time for DG containers at Felixstowe is 3 to 5 days — compared to 7+ days for standard dry cargo — reflecting the port authority’s urgency to move combustible material off the terminal. Daily terminal storage fees after the free-time window escalate from approximately £50 on day one to over £150 per day by day five. A documentary hold lasting one week adds £500–£1,000 to the cost of a shipment, erasing a significant portion of the margin on a commodity priced at £1.48 per kilogram.

Separately from terminal storage, the shipping line charges container detention for every day the container itself (the steel box) is not returned to the carrier’s depot. Detention charges typically begin after 5–7 days from discharge and run £30–£50 per day. An importer who clears the container from the terminal but delays unpacking and returning the empty box can accumulate detention charges that rival the demurrage costs.

What Happens If Border Force Selects the Container for X-Ray?

Commodities arriving from Indonesia — particularly dense, opaque agricultural products like charcoal — trigger elevated risk scores within the Border Force targeting matrix designed to detect contraband concealment. If the container is selected for an X-ray scan, the port operator charges the importer a terminal shunt fee of £150–£250 for physically moving the container to the scanning facility. This charge is levied regardless of whether anything suspicious is found and is entirely outside the importer’s control.

What Are Bill of Lading Correction Penalties?

If the Indonesian exporter creates the Bill of Lading using the generic 4402.90 HS code (a common default in Indonesian shipping systems) but the UK customs broker files the entry under the correct 4402.20 code, the manifest discrepancy will halt clearance. Correcting a B/L after vessel departure costs USD 100–150 per amendment, plus the time delay while the carrier’s documentation department processes the change — typically 2–3 business days during which the container cannot clear customs. The B/L must be verified for accuracy before the vessel sails.

What Is the 901Y Phytosanitary Exemption and Why Can Its Absence Cause Delays?

Under the Border Target Operating Model (BTOM), wood and plant products entering the UK require phytosanitary certificates. A poorly trained customs broker might classify charcoal as a regulated “wood product,” routing it to a Border Control Post for an inspection that cannot be completed because no phytosanitary certificate was issued — because none was required.

Charcoal — fully carbonized and biologically inert — is exempt from phytosanitary requirements. The exemption must be actively claimed by entering document code 901Y in Data Element 2/3 of the CDS declaration. Omitting this code can route the cargo to a Border Control Post for manual APHA intervention — a process that takes days while demurrage accrues.

Mini-Case: The Missing 901Y Code

Problem: A UK importer’s customs broker, unfamiliar with charcoal imports, submitted a CDS declaration for 20 tons of coconut charcoal briquettes without the 901Y exemption code. The CDS system flagged the shipment as a wood product requiring phytosanitary clearance and routed it to the Border Control Post.

Action: The broker contacted APHA to request manual override. Because no phytosanitary certificate existed (nor was one required), the resolution required APHA to confirm the exemption status and release the hold — a process that took 4 working days.

Result: The container exceeded its 3-day DG free-time window by 4 days. Demurrage charges totaled £520. Combined with the broker’s emergency amendment fee (£85), the administrative error cost the importer £605 — entirely avoidable had the 901Y code been entered correctly at filing.

How Does Currency Fluctuation Affect the Landed Cost?

The landed cost simulation uses a benchmark GBP/USD exchange rate of 0.80. Currency fluctuation is a real and often underestimated variable. A 5% movement in the exchange rate — from 0.80 to 0.84 GBP/USD — would reduce the sterling FOB cost by approximately £1,200 per container, while a move to 0.76 would increase it by the same amount. Since the FOB price and ocean freight are denominated in USD while all UK-side charges and the importer’s revenue are in GBP, the exchange rate directly determines margin. Importers with predictable ordering schedules can mitigate this risk using forward currency contracts, which lock in a rate for a future settlement date — typically available through commercial banks or specialist FX brokers at a cost of 0.1–0.3% of the contract value.

A View from the Other Side: Is Direct Import from Indonesia Worth the Complexity?

The strongest counterargument to direct importation from Indonesia is that the regulatory and logistical complexity of handling Class 4.2 dangerous goods, managing 12 documents across two jurisdictions, and navigating CDS compliance makes direct import economically irrational for small and mid-sized UK businesses — and that purchasing from established UK or European distributors who have already absorbed these costs is a more sensible strategy.

This argument has genuine merit in specific scenarios. A business importing fewer than 3–4 containers per year faces fixed learning costs (broker relationships, DG compliance knowledge, supplier verification) that are amortized over a small volume. If a UK distributor sells premium shisha charcoal at £2.50–£3.00 per kilogram — a common wholesale range — the margin between that price and the £1.48/kg landed cost from direct import is approximately £1.02–£1.52/kg. On a single 20-ton container, that represents £20,400–£30,400 in gross margin, which comfortably covers the complexity costs. But a business importing only 2–3 tons per quarter would spend weeks managing documentation and compliance for a gross margin of £2,040–£4,560 — before accounting for their own time, warehouse costs, and the risk of a single costly error (such as the £605 lost to the missing 901Y code in the mini-case above, or the £4,434 VAT miscalculation).

Additionally, distributor purchasing eliminates the working capital lockup inherent in direct import. A direct shipment ties up approximately £24,000–£30,000 in product cost for 7–8 weeks (from deposit payment to warehouse delivery), plus the ocean freight and port charges paid in advance. For a small business, that capital commitment may exceed the value of the margin gain.

For importers moving 3+ containers per year (54–60 tons annually), the economics shift decisively. The documentary and compliance processes described in this guide become repeatable — the same supplier, the same broker, the same carrier, the same documents. The per-container overhead of managing DG compliance drops to near zero once the first shipment establishes the operational template. At 60+ tons per year, the annual gross saving over distributor pricing reaches £61,200–£91,200 — a figure that justifies a dedicated operations resource and still produces substantial margin.

The conclusion is not that every UK business should import directly. It is that the break-even point exists at approximately 3 containers (54–60 tons) per year. Below that threshold, the distributor markup may be the cheaper option when total cost of management time and risk is included. Above it, direct import is not merely viable — it is the only competitive strategy for a business operating on wholesale margins.

What Should Importers Do Before Indonesia’s DCTS Graduation in 2027?

Importers should treat the period through December 31, 2026 as a finite procurement window and consider front-loading inventory while the 0% duty rate remains in effect, since post-graduation tariff costs could add £575–£1,379 per container depending on the MFN rate applied.

Even a modest MFN duty rate of 2–4% on a CIF value of £28,720 adds £575–£1,149 in duty per container, plus an additional £115–£230 in VAT calculated on the higher duty-inclusive value. Importers with sufficient storage capacity should evaluate whether the carrying cost of warehousing additional inventory — approximately £150–£300/month per container for commercial storage — is lower than the anticipated tariff increase. For an importer expecting to use 4–6 containers over the first half of 2027, front-loading 2–3 extra containers in Q4 2026 saves £1,150–£4,137 in total duty and VAT costs while costing £300–£900 in additional warehousing — a net saving of £850–£3,237.

The date of vessel arrival in UK territorial waters determines the applicable tariff, not the date of shipment. A container dispatched from Semarang on December 1, 2026 with a 35-day transit would arrive on January 5, 2027 — and face the post-graduation tariff rate. Procurement timelines for Q4 2026 shipments must account for this with precision. Working backward from a December 31 arrival date with a 35-day maximum transit means the vessel must depart Indonesia no later than November 26, 2026. Adding 14 days for weathering and 5 days for DG booking approval means production must be complete by early November 2026 at the latest.

Whether a new UK-Indonesia bilateral trade agreement will restore preferential access after 2027 remains uncertain. Planning on the assumption that the 0% rate ends permanently on December 31, 2026 is the only prudent approach.

How Do You Choose a Reliable Indonesian Shisha Charcoal Supplier?

Selecting the right Indonesian supplier is the single highest-leverage decision in the entire import process, because the factory controls 7 of the 12 required documents and all of the DG compliance steps that occur before the cargo reaches the vessel.

What Quality Specifications Should You Verify?

The four critical quality parameters for premium shisha charcoal briquettes are ash content (under 2.5% for premium grade, under 4% for standard), calorific value (7,000–7,500 kcal/kg), moisture content (under 5% at time of packing), and burn time (90–120 minutes for a standard 25×25×25mm cube). Request a laboratory test report from an accredited Indonesian lab (Sucofindo, Carsurin, or Bureau Veritas Indonesia) for each parameter. Compare the lab results against the factory’s marketing claims — a discrepancy of more than 10% on any parameter is a red flag.

Beyond the laboratory numbers, physical consistency matters for the retail market. Briquettes should have uniform dimensions (±1mm tolerance), no visible cracks, and consistent color (deep black, not grey or brown, which indicates incomplete carbonization). Request a sample shipment of 50–100 kg via air freight (approximately USD 200–350) before committing to an FCL order. The sample cost is negligible compared to the risk of receiving 20 tons of product that cannot be sold at the expected price point.

What Factory Certifications and Capabilities Are Non-Negotiable?

The factory must demonstrate three capabilities without exception. First, it must hold a current relationship with an ISO-certified testing laboratory that can issue the UN Test N.4 self-heating certificate on a per-batch basis. Second, it must have an established relationship with a carrier-approved marine surveyor for the vanning inspection — not all surveyors are accepted by all carriers, and Maersk, MSC, and CMA CGM each maintain their own approved lists for Indonesian ports. Third, it must have the physical infrastructure for 14-day open-air weathering: a covered, ventilated storage area large enough to hold the production volume for two weeks before packing.

Factories that lack any of these three capabilities cannot produce a compliant shipment. No amount of favorable pricing compensates for a container that is rejected at the port of loading.

Frequently Asked Questions

What Is the HS Code for Shisha Charcoal in the UK?

The correct UK commodity code is 4402.20.00.00 — “Wood charcoal (including shell or nut charcoal), whether or not agglomerated: Of shell or nut.” This subheading specifically covers coconut shell charcoal briquettes and must be used instead of the residual 4402.90 category to avoid UKTR/CITES scrutiny delays at the border.

Is There Customs Duty on Shisha Charcoal Imported from Indonesia to the UK?

Currently, no. The customs duty rate is 0% under the DCTS Standard Preferences, provided the shipment includes a valid DCTS Origin Declaration on the commercial invoice. This preference applies through December 31, 2026. Indonesia graduates from DCTS on January 1, 2027, after which the MFN rate applies.

How Much VAT Do I Pay on Imported Charcoal in the UK?

20% — the standard UK VAT rate. The reduced 5% rate for solid fuels applies only to domestic-use quantities under one metric ton. Commercial bulk imports attract the full 20%. VAT-registered importers can use Postponed VAT Accounting to avoid paying this sum at the border.

Do I Need a Special Licence to Import Charcoal to the UK?

No specific import licence is required for coconut shell charcoal briquettes. The importer must hold a valid GB EORI number registered with HMRC and must ensure full IMDG Code compliance for the UN 1361, Class 4.2 dangerous goods classification. No phytosanitary certificate is required — the product qualifies for the 901Y exemption in the CDS declaration.

Is Shisha Charcoal Classified as Dangerous Goods?

Yes. All coconut shell charcoal — including agglomerated briquettes — is mandatorily classified as UN 1361, Class 4.2 (Substances liable to spontaneous combustion), Packing Group III under the IMDG Code. This requires specialized documentation (MSDS, self-heating test, vanning certificate, weathering certificate), a DG booking with the carrier, and a dangerous goods surcharge on ocean freight.

What Is the Minimum Order Quantity to Import Shisha Charcoal from Indonesia?

A standard 1 × 20-foot Full Container Load holds 18–20 metric tons of coconut shell charcoal briquettes. This is the practical minimum for ocean freight — the fixed costs of DG booking, vanning survey, and freight charges make smaller quantities economically unviable for wholesale importation.

How Long Does Shipping from Indonesia to the UK Take?

Ocean transit from Semarang or Surabaya to Felixstowe takes 28–35 days, including transshipment at Singapore or Port Klang. Adding 14 days for mandatory weathering, 3–5 days for DG booking approval, and 1–3 days for UK customs clearance, the total pipeline from production completion to warehouse delivery is approximately 7–8 weeks.

What Is the Total Landed Cost per Kilogram of Shisha Charcoal Imported to the UK?

Based on 20 tons of premium grade at FOB USD 1,500/ton from Semarang to Felixstowe, the landed cost excluding VAT is approximately £1.48 per kilogram (£1,478 per metric ton). Including VAT before PVA offset, the gross figure is approximately £1.77 per kilogram.

What Is the DCTS and How Does It Affect Charcoal Imports from Indonesia?

The Developing Countries Trading Scheme is the UK’s unilateral preferential tariff programme for imports from developing nations, replacing the EU’s GSP after Brexit. Indonesia qualifies under the Standard Preferences tier, granting 0% duty on HS 4402.20.00.00. The scheme requires a DCTS Origin Declaration on the commercial invoice — without it, the MFN tariff applies.

What Happens When Indonesia Graduates from DCTS in 2027?

From January 1, 2027, Indonesian goods will no longer receive preferential tariff treatment under DCTS. The MFN rate under the UK Global Tariff will apply to HS 4402.20.00.00. Importers should anticipate additional duty costs of £575–£1,149 per 20-foot container, plus a cascading increase in VAT calculated on the higher duty-inclusive value, for a total additional cost of up to £1,379 per shipment.

Can I Import Shisha Charcoal from Countries Other Than Indonesia?

Indonesia is the dominant global supplier of coconut shell charcoal briquettes, accounting for an estimated 70–80% of world production, due to its position as the world’s largest coconut producer. Alternative source countries include the Philippines, Sri Lanka, India, and Vietnam. Each has different DCTS eligibility status, different FOB pricing (typically USD 100–300/ton higher than Indonesia due to smaller production scale), and different carrier route options. The Philippines qualifies for DCTS Enhanced Preferences (0% duty) and is not subject to the same January 2027 graduation timeline as Indonesia — making it a potential alternative supply source for post-2027 procurement, though production capacity and exporter reliability vary significantly.